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Application of Optical Coherence Tomography to a Mouse Model of Retinopathy
Published on: January 12, 2022
Correlation between metamorphopsia and epiretinal membrane optical coherence tomography findings
Akinari Watanabe1, Sachiko Arimoto, Okihiro Nishi
1Nishi Eye Hospital, 4-14-26 Nakamichi, Higashinari, Osaka, Japan. akinari@watanabeeye.net
Ophthalmology
|August 1, 2009
Summary
Spectral-domain optical coherence tomography (SD-OCT) reveals that inner nuclear layer (INL) thickness in epiretinal membrane (ERM) may correlate with metamorphopsia severity and visual acuity.
Area of Science:
- Ophthalmology
- Retinal Imaging
- Visual Perception
Background:
- Epiretinal membranes (ERMs) can cause visual disturbances like metamorphopsia.
- Understanding the retinal changes associated with ERM-induced metamorphopsia is crucial for patient management.
Purpose of the Study:
- To investigate the retinal morphologic features of metamorphopsia in patients with ERM.
- To determine the correlation between spectral-domain optical coherence tomography (SD-OCT) findings and metamorphopsia.
Main Methods:
- A retrospective case series included 19 eyes of 19 patients diagnosed with ERM.
- Patients were grouped based on Amsler chart results: no metamorphopsia, local metamorphopsia, or broad metamorphopsia.
- Thickness of inner retinal layers (INL, OPL, ONL) was measured using SD-OCT.
Main Results:
- Metamorphopsia correlated with edematous inner nuclear layer (INL) areas thicker than 50 µm.
- Significant differences in maximum INL thickness were observed between groups with no, local, and broad metamorphopsia.
- Visual acuity showed significant correlation with both maximum INL and outer nuclear layer (ONL) thickness.
Conclusions:
- Edematous INL areas detected by SD-OCT may be linked to metamorphopsia caused by ERM.
- Classifying ERM based on INL thickness could be a valuable indicator for surgical intervention.
